The BGS Lexicon of Named Rock Units — Result Details
Upper Follifoot Grit
| Computer Code: | UF | Preferred Map Code: | UF |
|---|---|---|---|
| Status Code: | Full | ||
| Age range: | Chokierian Substage (CH) — Alportian Substage (CO) | ||
| Lithological Description: | Sandstone; fine-, medium- and coarse-grained. | ||
| Definition of Lower Boundary: | Sharp contact between sandstone bed at the base of the unit and the underlying siltstone and mudstone. | ||
| Definition of Upper Boundary: | Sharp contact between sandstone and the overlying mudstone. | ||
| Thickness: | 2 - 16 m. | ||
| Geographical Limits: | Present in the Harrogate, Leeds, Masham and Pateley Bridge areas. | ||
| Parent Unit: | Samlesbury Formation (SAML) | ||
| Previous Name(s): | Upper Follifoot Ridge Grit [Obsolete Name and Code: Use UF]
(-3103)
Upper Follifoot Grit (UF) Upper Follifoot Grit (UF) Follifoot Grit [Obsolete Name and Code: Use LFG, UF] (-3522) |
||
| Alternative Name(s): | none recorded or not applicable | ||
| Stratotypes: | |||
| Type Area | Sandstone ridge between the farms of High Snape and Follifoot Ridge, lying to the southwest and west respectively of Follifoot village near Harrogate. Edwards et al., 1950. | ||
| Reference(s): | |||
| Wilson, A A. 1977. The Namurian rocks of the Fewston area. Transactions of the Leeds Geological Association, Vol.9, 1-42. | |||
| Fox-Strangways, 1873. The geology of the country north and east of Harrogate. Memoir of the Geological Survey (England & Wales). London HMSO. | |||
| Hudson, R G S. 1934. The Millstone Grit succession south of Harrogate. Transactions of the Leeds Geological Association, Vol. 5, 118-124. | |||
| Hudson, R G S. 1939. The Millstone Grit succession of the Simonseat Anticline, Yorkshire. Proceedings of the Yorkshire Geological Society, Vol. 23, p. 319 - 349. | |||
| Edwards, W Mitchell, GH and Whitfield, TH. 1950. Geology of the district north and east of Leeds. Memoir of the British Geological Survey, sheet 70 (England and Wales). | |||
| Burgess, I C, and Cooper, A H. 1980. The Farnham (IGS) borehole near Knaresborough, North Yorkshire. Report of the Institute of Geological Sciences, No. 80/1, 12-17. | |||
| Wilson, A A. 1960. The Carboniferous rocks of Colsterdale and neighbourhood, Yorkshire. Proceedings of the Yorkshire Geological Society, Vol. 32, p. 429 - 452. | |||
| Cooper, A H and Burgess, I C. 1993. Geology of the country around Harrogate. Memoir for 1:50000 geological sheet 62 (England and Wales). London: HMSO for the British Geological Survey. | |||
| Fox-Strangways, 1908. The geology of the country north and east of Harrogate (2nd edition). Memoir of the Geological Survey (England & Wales). London HMSO. | |||
| Hudson, R G S, 1938. The geology of the country around Harrogate. Proceedings of the Geologists' Association, Vol.49, 306-330. | |||
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: | |||
| E051 E062 E070 | |||